-er a-a a-c aaa aac aae aah aaj aan aao aar ac- aca acc ace ach acj acn aco acr aea aec aee aeh aej aen aeo aer aha ahc ahe ahh ahj ahn aho ahr aja ajc aje ajh ajj ajn ajo ajr an- ana anc ane anh anj ann ano anr aoa aoc aoe aoh aoj aon aoo aor ar- ara arc are arh arj arn aro arr c-- c-j caa cac cae cah caj can cao car cca ccc cce cch ccj ccn cco ccr ce- cea cec cee ceh cej cen ceo cer ch- cha chc che chh chn cho chr cja cjc cjr cn- cna cnc cne cnh cnj cnn cno cnr co- coa coc coe coh coj con coo cor cra crc cre crh crj crn cro crr eaa eac eae eah eaj ean eao ear ec- eca ecc ece ech ecj ecn eco ecr eea eec eee een eeo eer eha ehc ehe ehh ehn eho ehr eja ejc ejo en- ena enc ene enh enn eno enr eo- eoa eoc eoe eoh eon eoo eor era erc ere erh ern ero err haa hac hae hah haj han hao har hca hcc hce hch hcj hcn hco hcr he- hea hec hee heh hej hen heo her hha hhc hhe hhh hhj hhn hho hhr hja hjn hjo hjr hna hnc hne hnh hnj hnn hno hoa hoc hoe hoh hon hoo hor hr- hra hrc hre hrh hrj hrn hro hrr jaa jac jae jah jaj jan jao jar jca jcc jce jch jco jcr jea jec jee jeh jej jen jeo jer jha jhc jhe jhj jhn jho jhr jja jjc jjj jjr jna jnc jne jnh jnj jnn jno jnr joa joc joe joh joj jon joo jor jra jrc jrn jro jrr naa nac nae nah naj nan nao nar nca ncc nce nch ncn nco ncr ne- nea nec nee neh nej nen neo ner nha nhc nhe nhh nhj nhn nhr nja njc nje njn nna nnc nne nnh nnn nno no- noa noc noe noh noj non noo nor nra nrc nre nrj nrn nro nrr oaa oac oae oah oaj oan oao oar oc- oca occ och ocj ocn oco ocr oea oec oee oeh oen oeo oer oha ohc ohe ohh ohn oho ohr oja ojc oje ojo on- ona onc one onh onj onn ono onr oo- ooa ooc ooh oon ooo oor or- ora orc ore orh orn oro orr ra- raa rac rae rah raj ran rao rar rca rcc rce rch rcj rcn rco rcr re- rea rec ree reh ren reo rer rh- rha rhc rhe rhh rhn rho rhr rja rjc rjr rna rnc rnh rnn rno rnr roa roc roe roh roj ron roo ror rra rrc rrh rrn rrr